CN106493308A - A kind of gate valve foundry goods of low cost without rising head - Google Patents

A kind of gate valve foundry goods of low cost without rising head Download PDF

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Publication number
CN106493308A
CN106493308A CN201710013108.8A CN201710013108A CN106493308A CN 106493308 A CN106493308 A CN 106493308A CN 201710013108 A CN201710013108 A CN 201710013108A CN 106493308 A CN106493308 A CN 106493308A
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CN
China
Prior art keywords
die cavity
gate valve
flashboard
core
chamber
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Granted
Application number
CN201710013108.8A
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Chinese (zh)
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CN106493308B (en
Inventor
宁林祥
程邦军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Oyeda Machinery Manufacturing Co., Ltd.
Original Assignee
Zhejiang Ou Ye Reaches Machinery Manufacturing Co Ltd
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Application filed by Zhejiang Ou Ye Reaches Machinery Manufacturing Co Ltd filed Critical Zhejiang Ou Ye Reaches Machinery Manufacturing Co Ltd
Priority to CN201710013108.8A priority Critical patent/CN106493308B/en
Publication of CN106493308A publication Critical patent/CN106493308A/en
Application granted granted Critical
Publication of CN106493308B publication Critical patent/CN106493308B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/22Moulds for peculiarly-shaped castings
    • B22C9/24Moulds for peculiarly-shaped castings for hollow articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/02Sand moulds or like moulds for shaped castings

Abstract

The invention discloses a kind of gate valve foundry goods of low cost without rising head, including cope(1)And drag box(2), cope(1)Sluice valve-type chamber is inside provided with(3), upper sluice valve-type chamber(3)Upper core is inside provided with(4), described drag box(2)Lower gate valve die cavity is inside provided with(5), lower gate valve die cavity(5)Lower core is inside provided with(6);The upper sluice valve-type chamber(3)Including upper flashboard grooved chamber(31), upper flashboard grooved chamber(31)One end is provided with upper orifice die cavity(32), upper flashboard grooved chamber(31)It is provided with rib die cavity(33), upper rib die cavity(33)It is provided with outlet piece(34).The present invention has the characteristics of can making gate valve finished surface close structure, improve gate valve product qualified rate, reduce production cost and improve production efficiency.

Description

A kind of gate valve foundry goods of low cost without rising head
Technical field
The present invention relates to a kind of gate valve production technology, is a kind of gate valve castings production practical technique of low cost without rising head.
Background technology
Its structure of bigbore gate valve is complex, and its thickness skewness, is entered using current upper drag box die joint During row casting gate valve, after molten iron filling die cavity, need to carry out reexpansion, then carry out cooling contraction from the bottom up, due to institute With the characteristic of spheroidal graphite cast-iron, can cause the top partly and large area wall thickness bit comparison is loose, structure is not tight.And gate valve casting Part after casting is completed generally requires to carry out secondary operations, in the surface of gate valve and internal heavy wall position processing bolt hole, bearing Hole etc. operates, and so wherein more loose surface is just extremely easily damaged, and causes gate valve use, and needs to scrap to cast again Make, reduce qualification rate, improve production cost, reduce production efficiency.It is additionally, since existing gate valve produced When, need to arrange multiple riser feeding techniques, so after the completion of casting, huge running gate system and substantial amounts of will be formed Rising head, many kilograms of the 30-50 and each rising head weighs, causes the raw material needed for product more, and production cost is higher, while having produced Into also needing to cut off rising head, labor intensity is both increased, has also been wasted raw material.Therefore, existing technology has gate valve surface Short texture, conforming product rate are low, production cost is high and the problems such as low production efficiency.
Content of the invention
It is an object of the invention to, there is provided a kind of gate valve foundry goods of low cost without rising head.It has can make gate valve finished product Surface texture closely, the characteristics of improve gate valve product qualified rate, reduce production cost and improve production efficiency.
Technical scheme:A kind of gate valve foundry goods of low cost without rising head, including cope and drag box, cope Sluice valve-type chamber is inside provided with, upper sluice valve-type intracavity is provided with upper core, in described drag box, is provided with lower gate valve die cavity, lower sluice valve-type Intracavity is provided with lower core;The upper sluice valve-type chamber includes the upper flashboard grooved chamber that section is square structure, upper flashboard grooved chamber one End is provided with the upper orifice die cavity of semi-cylindrical in configuration, and upper flashboard grooved cavity wall is provided with rib die cavity on a group, upper rib die cavity Top is provided with outlet piece;The upper core and lower core include that the mouth of pipe core of semi-cylindrical in configuration, mouth of pipe core are provided with lock Board slot core, before and after flashboard groove-type core, both sides are respectively provided with one group of groove core;Between the upper sluice valve-type chamber and lower gate valve die cavity It is provided with gate valve main body.
In a kind of gate valve foundry goods of the aforesaid low cost without rising head, the upper rib die cavity is surrounded on upper flashboard grooved intracavity Wall cloth is put.
In a kind of gate valve foundry goods of the aforesaid low cost without rising head, the lower gate valve die cavity includes that section is square structure Lower flashboard grooved chamber, lower flashboard grooved chamber one end are provided with the mo(u)ld bottom half cavity main body of semi-cylindrical in configuration, set on lower flashboard grooved cavity wall There is rib die cavity under a group;The lower rib die cavity is surrounded on lower flashboard grooved cavity wall arrangement.
In a kind of gate valve foundry goods of the aforesaid low cost without rising head, it is additionally provided with and cope on the upper sluice valve-type cavity wall The corresponding upper annulus die cavity of interior mouth of pipe core.
In a kind of gate valve foundry goods of the aforesaid low cost without rising head, it is additionally provided with and drag box on the lower sluice valve-type cavity wall The corresponding lower annulus die cavity of interior mouth of pipe core.
Compared with prior art, the present invention is by changing the parting method of original gate valve in sandbox, with gate valve level in Heart face is die joint, by symmetrical for gate valve typing, forms two mouths of pipe with semi-cylindrical in configuration, therefore in upper and lower sandbox respectively The mouth of pipe die cavity of semi-cylindrical in configuration is formed, the mouth of pipe die cavity of traditional column structure is substituted, it is ensured that the upper and lower circular surface of gate valve Structure tight so that gate valve is not in produce asking for gate valve damage rupture because material is loose when secondary operations are carried out Topic, improves the qualification rate of gate valve finished product, simultaneously because the raising of qualification rate, avoids the need for carrying out casting is repeated several times to make lock Valve meets requirement, thus just reduces production cost, improves production efficiency.Using the matter Feeding Characteristics of spheroidal graphite cast-iron, by adopting Replace traditional riser feeding mode with outlet piece, greatly reduce the use cost of raw material, but also need not be to which Reworking process, the generation without waste material alleviate the labor intensity of workman, reduce production cost.In sum, this Bright with can make gate valve finished surface close structure, improve gate valve product qualified rate, reduce production cost and improve production The characteristics of efficiency.
Description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is the side view of Fig. 1;
Fig. 4 is the structural representation of gate valve finished product.
Description of symbols in accompanying drawing:1- copes, 2- drag boxs, the upper sluice valve-type chambeies of 3-, 4- upper cores, sluice valve-type under 5- Chamber, core under 6-, 7- mouth of pipe cores, 8- flashboard groove-type cores, 9- groove cores, the upper annulus die cavities of 10-, annulus die cavity under 11-, 12- gate valve main bodys, 31- upper flashboard grooveds chamber, 32- upper orifice die cavities, the upper rib die cavities of 33-, 34- outlet pieces, 51- lower flashboard grooves Die cavity, 52- mo(u)ld bottom half cavity main bodies, rib die cavity under 53-.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples, but not as the foundation limited by the present invention.
Embodiment.A kind of gate valve foundry goods of low cost without rising head, is constituted as shown in Figures 1 to 4, including cope 1 with Sandbox 2, is provided with sluice valve-type chamber 3 in cope 1, be provided with upper core 4, be provided with down in described drag box 2 in upper sluice valve-type chamber 3 Gate valve die cavity 5, is provided with lower core 6 in lower gate valve die cavity 5;The upper sluice valve-type chamber 3 includes the upper flashboard that section is square structure Grooved chamber 31,31 one end of upper flashboard grooved chamber are provided with the upper orifice die cavity 32 of semi-cylindrical in configuration, on 31 inwall of upper flashboard grooved chamber Rib die cavity 33 on one group is provided with, above upper rib die cavity 33, outlet piece 34 is provided with;The upper core 4 and lower core 6 include The mouth of pipe core 7 of semi-cylindrical in configuration, mouth of pipe core 7 are provided with flashboard groove-type core 8, and before and after flashboard groove-type core 8, both sides are respectively provided with one Group groove core 9;Gate valve main body 12 is formed between the upper sluice valve-type chamber 3 and lower gate valve die cavity 5.
The upper rib die cavity 33 is surrounded on upper flashboard grooved chamber 31 inwall arrangement.
The lower gate valve die cavity 5 includes the lower flashboard grooved chamber 51 that section is square structure, 51 one end of lower flashboard grooved chamber The mo(u)ld bottom half cavity main body 52 of semi-cylindrical in configuration is provided with, 52 inwall of lower flashboard grooved chamber is provided with rib die cavity 53 under a group;Under described Rib die cavity 53 is surrounded on lower flashboard grooved chamber 51 inwall arrangement.
The upper annulus die cavity corresponding with the mouth of pipe core 7 in cope 1 is additionally provided with upper 3 inwall of sluice valve-type chamber 10.
The lower annulus die cavity corresponding with the mouth of pipe core 7 in drag box 2 is additionally provided with lower 4 inwall of gate valve die cavity 11.
Die cavity and core in the upper and lower sandbox is relative in the face of the half-sectional gate valve external structure that cuts open with horizontal parting Should.
The operation principle of the present invention:The molten iron injection of nodular cast iron material is poured pipe, molten iron enters die cavity through pouring pipe flow, Air in die cavity is discharged from outlet piece by molten iron, after having molten iron to enter, shows to fill with die cavity inside outlet piece Molten iron, then stop casting.Molten iron carries out up time solidification by from the bottom up, in the way of from low temperature to high-temperature shrinkage, in the mistake of cooling Carry out from feeding in journey.

Claims (5)

1. a kind of gate valve foundry goods of the low cost without rising head, it is characterised in that:Including cope(1)And drag box(2), cope (1)Sluice valve-type chamber is inside provided with(3), upper sluice valve-type chamber(3)Upper core is inside provided with(4), described drag box(2)Lower lock is inside provided with Valve-type chamber(5), lower gate valve die cavity(5)Lower core is inside provided with(6);The upper sluice valve-type chamber(3)It is square structure including section Upper flashboard grooved chamber(31), upper flashboard grooved chamber(31)One end is provided with the upper orifice die cavity of semi-cylindrical in configuration(32), brake application board slot Die cavity(31)Inwall is provided with rib die cavity on a group(33), upper rib die cavity(33)Top is provided with outlet piece(34);On described Core(4)With lower core(6)Include the mouth of pipe core of semi-cylindrical in configuration(7), mouth of pipe core(7)It is provided with flashboard groove-type core (8), flashboard groove-type core(8)Both sides are respectively provided with one group of groove core in front and back(9);The upper sluice valve-type chamber(3)With lower gate valve die cavity (5)Between be provided with gate valve main body(12).
2. a kind of gate valve foundry goods of the low cost without rising head according to claim 1, it is characterised in that:The upper rib die cavity (33)It is surrounded on upper flashboard grooved chamber(31)Inwall is arranged.
3. a kind of gate valve foundry goods of the low cost without rising head according to claim 1, it is characterised in that:The lower gate valve die cavity (5)Including the lower flashboard grooved chamber that section is square structure(51), lower flashboard grooved chamber(51)One end is provided with semi-cylindrical in configuration Mo(u)ld bottom half cavity main body(52), lower flashboard grooved chamber(52)Inwall is provided with rib die cavity under a group(53);The lower rib die cavity (53)It is surrounded on lower flashboard grooved chamber(51)Inwall is arranged.
4. a kind of gate valve foundry goods of the low cost without rising head according to claim 1, it is characterised in that:The upper sluice valve-type chamber (3)It is additionally provided with inwall and cope(1)Interior mouth of pipe core(7)Corresponding upper annulus die cavity(10).
5. a kind of gate valve foundry goods of the low cost without rising head according to claim 3, it is characterised in that:The lower gate valve die cavity (4)It is additionally provided with inwall and drag box(2)Interior mouth of pipe core(7)Corresponding lower annulus die cavity(11).
CN201710013108.8A 2017-01-09 2017-01-09 A kind of gate valve casting of the low cost without riser Active CN106493308B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710013108.8A CN106493308B (en) 2017-01-09 2017-01-09 A kind of gate valve casting of the low cost without riser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710013108.8A CN106493308B (en) 2017-01-09 2017-01-09 A kind of gate valve casting of the low cost without riser

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CN106493308B CN106493308B (en) 2018-06-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108273962A (en) * 2018-04-23 2018-07-13 芜湖市华邦流体科技有限公司 A kind of handwheel casting mold of Simple gate valve
CN108580812A (en) * 2018-04-23 2018-09-28 芜湖市华邦流体科技有限公司 A kind of gate valve sand box used for casting

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104190874A (en) * 2014-07-28 2014-12-10 兰州兰石集团有限公司 High-temperature high-pressure ultralow sulfur-and-phosphorus valve body casting forming process
CN204430198U (en) * 2015-01-04 2015-07-01 中核苏阀横店机械有限公司 Ultra-large type butterfly valve inner chamber shaping core
JP5867938B1 (en) * 2014-12-18 2016-02-24 株式会社鷹取製作所 Mold and mold manufacturing method
WO2016075844A1 (en) * 2014-11-14 2016-05-19 株式会社鷹取製作所 Mold
CN206474641U (en) * 2017-01-09 2017-09-08 浙江欧冶达机械制造有限公司 The inexpensive gate valve casting without rising head

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104190874A (en) * 2014-07-28 2014-12-10 兰州兰石集团有限公司 High-temperature high-pressure ultralow sulfur-and-phosphorus valve body casting forming process
WO2016075844A1 (en) * 2014-11-14 2016-05-19 株式会社鷹取製作所 Mold
JP5867938B1 (en) * 2014-12-18 2016-02-24 株式会社鷹取製作所 Mold and mold manufacturing method
CN204430198U (en) * 2015-01-04 2015-07-01 中核苏阀横店机械有限公司 Ultra-large type butterfly valve inner chamber shaping core
CN206474641U (en) * 2017-01-09 2017-09-08 浙江欧冶达机械制造有限公司 The inexpensive gate valve casting without rising head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108273962A (en) * 2018-04-23 2018-07-13 芜湖市华邦流体科技有限公司 A kind of handwheel casting mold of Simple gate valve
CN108580812A (en) * 2018-04-23 2018-09-28 芜湖市华邦流体科技有限公司 A kind of gate valve sand box used for casting

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Address after: 313009 Zhengdao Road 333, Lianshi Town, Nanxun District, Huzhou City, Zhejiang Province

Patentee after: Zhejiang Oyeda Machinery Manufacturing Co., Ltd.

Address before: 313013 South Side of 18Hao Road, Lianshi Town Industrial Function Zone, Nanxun District, Huzhou City, Zhejiang Province (333 Lianxi Avenue)

Patentee before: Zhejiang Ou Ye reaches Machinery Manufacturing Co., Ltd.